Denial of service in PJSIP
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-32686 |
| CWE-ID | CWE-248 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
pjsip Universal components / Libraries / Libraries used by multiple products |
| Vendor | pjsip |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Uncaught Exception
EUVDB-ID: #VU55295
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-32686
CWE-ID:
CWE-248 - Uncaught Exception
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The
vulnerability exists due to uncaught exception in pjsip when processing TLS handshake. A remote
attacker can initiate TLS connection with the software and then destroy
the socket during handshake, causing the application to crash.
Install updates from vendor's website.
Vulnerable software versionspjsip: 0.5.0.1 - 2.11
External linkshttp://github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr
http://github.com/pjsip/pjproject/pull/2716
http://github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd
http://github.com/pjsip/pjproject/releases/tag/2.11.1
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
